21073008572467 has 2 divisors, whose sum is σ = 21073008572468. Its totient is φ = 21073008572466.

The previous prime is 21073008572459. The next prime is 21073008572509. The reversal of 21073008572467 is 76427580037012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21073008572467 - 2³ = 21073008572459 is a prime.

It is not a weakly prime, because it can be changed into another prime (21073008572167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10536504286233 + 10536504286234.

It is an arithmetic number, because the mean of its divisors is an integer number (10536504286234).

Almost surely, 2^{21073008572467} is an apocalyptic number.

21073008572467 is a deficient number, since it is larger than the sum of its proper divisors (1).

21073008572467 is an equidigital number, since it uses as much as digits as its factorization.

21073008572467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 21073008572467 in words is "twenty-one trillion, seventy-three billion, eight million, five hundred seventy-two thousand, four hundred sixty-seven".